CN104143285B - Planet circular system simulation teaching aid - Google Patents
Planet circular system simulation teaching aid Download PDFInfo
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- CN104143285B CN104143285B CN201410343596.5A CN201410343596A CN104143285B CN 104143285 B CN104143285 B CN 104143285B CN 201410343596 A CN201410343596 A CN 201410343596A CN 104143285 B CN104143285 B CN 104143285B
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- central shaft
- circular system
- gear
- planet circular
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Abstract
Planet circular system simulation teaching aid, relate to a kind of teaching aid simulating planet circular system motion, it is provided with a planet circular system analog, central shaft and a cursor that a rotation is arranged on bearing it is provided with in this planet circular system analog, the sun gear of the different number of teeth it is installed with on central shaft, and central shaft passes a fixed gear being installed on bearing, the planetary gear set of multiple different number of teeth proportioning it is provided with on cursor, planetary gear in different planetary gear set is different from the gear ratio of the sun gear on central shaft, in order to demonstrate different movement effects, show by being arranged on the motion sensor in planet circular system analog and message handler on multimedia display screen after central shaft and the process of the movable information such as the rotation direction of planetary wheel carrier and rotating speed, show the simulation animation of train kinestate simultaneously.The present invention can demonstrate out locking phenomenon and the situation of change etc. of train rotation direction of 2K H planet circular system, improves teaching efficiency well.
Description
Technical field
The present invention relates to a kind of teaching aid simulating planet circular system motion, specially planet circular system simulation teaching aid.
Background technology
Planet circular system is a kind of typical cyclic train, is to be made up of planetary gear, planet carrier and sun gear.The forms of motion of planet circular system is just the most the same with solar motion, planet revolve around the sun while also in rotation, and the sun only does rotation.Planet circular system of a great variety, wherein 2K-H type planet circular system is class planet circular system the most typical, widely used.In 2K-H type planet circular system, along with the difference of number of gear teeth, sometimes produce " locking phenomenon ", the rotation direction of train then can change sometimes, just as the planet revolution direction having in the solar system identical with sense of rotation and have contrary.
In teaching at ordinary times, the rotation direction that gear when the motion principle of this kind of planet circular system and planet circular system transmission is actual is created and many feel uncertain and do not understand by classmates, therefore, design and produce 2K-H planet circular system teaching aid, can be so that classmates preferably learn in classroom, understand this train.
Summary of the invention
It is an object of the invention to provide a kind of teaching aid that can simulate the motion of 2K-H type planet circular system, to enrich the content of education, improve teaching efficiency.
nullFor achieving the above object，The technical scheme is that planet circular system simulation teaching aid，It is provided with a planet circular system analog，It is provided with left support abutment and right support abutment in this planet circular system analog，A central shaft it is rotationally connected between left support abutment and right support abutment，The sun gear of two different numbers of teeth it is installed with on central shaft，A fixed gear it is installed with on left support abutment，Central shaft passes from this gear centre，A cursor rotated by handle drives it is rotationally connected on right support abutment，A bracing frame is connected by support shaft on cursor，Bracing frame is provided with multiple planetary wheel carrier around support shaft，A planet axis and two planetary gears being individually fixed in planet axis two ends it are equipped with on each planetary wheel carrier，Planet axis is located on planetary wheel carrier and is rotationally connected with planetary wheel carrier，Two planetary gears on each planetary wheel carrier can engage with the fixed gear being installed on left support abutment and a fixed sun gear on center shaft respectively，Two planetary gears on same planetary wheel carrier have the different numbers of teeth，And the planetary gear on different rows star wheel frame is different from the gear ratio of the sun gear on central shaft，Described left support abutment and right support abutment are respectively equipped with one for measuring center axle and bracing frame rotation direction and the motion sensor of rotating speed，The signal output part of motion sensor is connected to message handler，The data output end of message handler connects multimedia display screen.
Beneficial effect: the present invention can demonstrate out locking phenomenon and the situation of change etc. of train rotation direction of 2K-H planet circular system, and kinematic parameter and the simulation animation of 2K-H planet circular system are intuitively shown simultaneously, it covers many knowledge points in planet circular system teaching, improve teaching efficiency well, improve the present situation lacking practical teaching aid in the teaching of 2K-H planet circular system.Teaching aid of the present invention is applicable to the various teaching occasionses such as multimedia, non-multimedia and laboratory, takes up room little, easy to carry, and each Element Design is simple, and easy to process, material is easy to get.
Accompanying drawing explanation
Fig. 1 is the structural representation of the planet circular system analog of the present invention.
Fig. 2 is the installation diagram of the planet circular system analog of the present invention.
Figure is labeled as: 1, left support abutment, 2, right support abutment, 3, central shaft, 4, cursor, 5, support shaft, 6, planetary wheel carrier, 7, handle, 8, right axle sleeve, 9, left axle sleeve, 10, planet axis.
Detailed description of the invention
As depicted in figs. 1 and 2, planet circular system simulation teaching aid, it is provided with a planet circular system analog, left support abutment 1 and right support abutment 2 it is provided with in this planet circular system analog, left support abutment 1 and right support abutment 2 are fixed on base, a central shaft 3 it is rotationally connected between left support abutment 1 and right support abutment 2, left axle sleeve 9 and right axle sleeve 8 it is respectively equipped with in left support abutment 1 and right support abutment 2, central shaft 3 one end passes from left axle sleeve 9 center, the other end is arranged in right axle sleeve 8, right axle sleeve 8 is arranged in right support abutment 2 by bearing, left axle sleeve 9 is installed on left support abutment 1, left axle sleeve 9 is installed with the gear of 39 teeth, central shaft 3 passes from this gear centre, it is respectively the sun gear of 37 and 41 by bonded two numbers of teeth on central shaft 3.Connect in one end of right axle sleeve 8 and have cursor 4, the other end connects handle 7, cursor 4 and handle 7 are linked together by right axle sleeve 8, a bracing frame is connected by support shaft 5 on cursor 4, bracing frame is provided with multiple planetary wheel carrier 6 around support shaft 5, one end of support shaft 5 is connected on cursor 4, and the other end is located in the bolt hole that bracing frame is centrally disposed, and is fixed by nut.nullPlanetary wheel carrier 6 could be arranged to three，What it was different length stretches out handle，Each stretching out is equipped with a planet axis 10 and two planetary gears being individually fixed in planet axis 10 two ends on handle，Form a planetary gear set，Planet axis 10 is located on planetary wheel carrier 6 and is rotationally connected with planetary wheel carrier 6，Two planetary gears in each planetary gear set have different number of teeth proportionings，Wherein，The planetary gear number of teeth proportioning of three planetary gear set is 18 tooth-16 teeth、14 tooth-16 teeth、41 tooth-39 teeth，Three planetary gear set respectively with 39 two gears of tooth-41 tooth on central shaft 3、39 two gears of tooth-37 tooth、39 two, tooth-41 tooth gear engagements，The planetary gear set of three different number of teeth proportionings engages with the gear on central shaft 3 can obtain three kinds of motion results respectively，41 tooth-39 gear planetary wheel groups constitute co-rotating transmission mechanism，The i.e. rotation direction of planetary wheel carrier 6 is identical with the rotation direction of central shaft 3，Its gear ratio is 12:1，And the efficiency calculation value of its revesal is negative value，" self-locking " phenomenon of mechanism can be demonstrated out；18 tooth-16 gear planetary wheel groups also may make up co-rotating transmission mechanism, and its gear ratio is 6:1；It is contrary with the rotation direction of central shaft 3 that 14 tooth-16 gear planetary wheel groups then may make up reverse drive mechanism, the i.e. rotation direction of planetary wheel carrier 6, and its gear ratio is 5:1.Two planetary gears in each planetary gear set can engage with gear and the sun gear being installed on central shaft 3 of 39 teeth being installed on left support abutment 1 respectively.When some planetary gear set engages with the gear being positioned on central shaft 3, other two planetary gear set are left unused, being unclamped by the nut of support shaft 5 end when needing, rotary support frame is so that other planetary gear set engages with the gear on central shaft 3, to realize freely changing of three planetary gear set.Left support abutment 1 and right support abutment 2 are respectively equipped with one for measuring center axle 3 and bracing frame rotation direction and the motion sensor of rotating speed, wherein bracing frame is structure as a whole with planetary wheel carrier 6 or fixes and is connected, therefore the rotation direction of bracing frame and rotating speed are identical with rotation direction and the rotating speed of planetary wheel carrier 6, the signal output part of motion sensor is connected to message handler, and the data output end of message handler connects multimedia display screen.Central shaft 3 and the movable information such as the rotation direction of bracing frame and rotating speed of measurement are passed to message handler by motion sensor, the data received are changed into the topmost data of train such as the gear ratio of train, rotation direction, efficiency and rotating speed by message handler, and the data after processing on multimedia display screen show, and show the simulation animation of train kinestate simultaneously.
Claims (1)
- null1. a planet circular system simulation teaching aid，It is characterized in that: be provided with a planet circular system analog，Left support abutment (1) and right support abutment (2) it is provided with in this planet circular system analog，A central shaft (3) it is rotationally connected between left support abutment (1) and right support abutment (2)，The sun gear of two different numbers of teeth it is installed with on central shaft (3)，A fixed gear it is installed with on left support abutment (1)，Central shaft (3) passes from this fixed gear center，It is rotationally connected one on right support abutment (2) and is driven the cursor (4) rotated by handle (7)，The right axle sleeve (8) being arranged in right support abutment (2) by rotation between cursor (4) and handle (7) is connected，One end of central shaft (3) rotates and is arranged in right axle sleeve (8)，A bracing frame is connected by support shaft (5) on cursor (4)，One end of support shaft (5) is connected on cursor (4)，The other end is located in the bolt hole that bracing frame is centrally disposed，And fixed by nut，Bracing frame is provided with multiple planetary wheel carrier (6) around support shaft (5)，A planet axis (10) and two planetary gears being individually fixed in planet axis (10) two ends it are equipped with on each planetary wheel carrier (6)，Planet axis (10) is located in planetary wheel carrier (6) and above and is rotationally connected with planetary wheel carrier (6)，One of them planetary gear on each planetary wheel carrier (6) can engage with the fixed gear being installed on left support abutment (1)，Another planetary gear can engage with the sun gear being installed on central shaft (3)，Two planetary gears on same planetary wheel carrier (6) have the different numbers of teeth，And the planetary gear on different rows star wheel frame (6) is different from the gear ratio of the sun gear on central shaft (3)，Described left support abutment (1) and right support abutment (2) are respectively equipped with one for measuring center axle (3) and bracing frame rotation direction and the motion sensor of rotating speed，The signal output part of motion sensor is connected to message handler，The data output end of message handler connects multimedia display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343596.5A CN104143285B (en) | 2014-07-18 | 2014-07-18 | Planet circular system simulation teaching aid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410343596.5A CN104143285B (en) | 2014-07-18 | 2014-07-18 | Planet circular system simulation teaching aid |
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| CN104143285A CN104143285A (en) | 2014-11-12 |
| CN104143285B true CN104143285B (en) | 2016-10-05 |
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| CN201410343596.5A Expired - Fee Related CN104143285B (en) | 2014-07-18 | 2014-07-18 | Planet circular system simulation teaching aid |
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| CN107665629A (en) * | 2014-11-23 | 2018-02-06 | 合肥龙精灵信息技术有限公司 | Train teaching aid |
| CN108006170A (en) * | 2017-12-04 | 2018-05-08 | 安徽未来机电科技有限公司 | A kind of planetary reduction gear of multi-change speed |
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| SU508791A1 (en) * | 1974-07-12 | 1976-03-30 | Херсонский Филиал Одесского Техноло-Гического Института Им.М.В.Ломоносо-Ва | Mechanical training device |
| CN2566395Y (en) * | 2002-08-30 | 2003-08-13 | 上海科技馆 | Travel multiplication and planetary gear drive mechanism for mechanical driving demonstration device |
| CN203520749U (en) * | 2013-10-14 | 2014-04-02 | 天津大学 | Modular gear train combination experimental device |
| CN203689806U (en) * | 2013-12-31 | 2014-07-02 | 西安理工大学 | Compound gear train transmission mechanism demonstration teaching aid |
| CN203950497U (en) * | 2014-07-18 | 2014-11-19 | 河南科技大学 | Planet circular system simulation teaching aid |
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Granted publication date: 20161005 Termination date: 20170718 |
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